Take Part. Get Set For Life.™

National Federation of StateHigh School Associations

NFHS Injury Surveillance System

R. Dawn Comstock, Ph.D., Associate ProfessorColorado School of Public Health

Update on Injury Among High School Athletes

R. Dawn Comstock, PhDAssociate Professor

Colorado School of Public Health, EpidemiologyUniversity of Colorado School of Medicine, Pediatrics (Emergency Medicine)

Pediatric Injury Prevention, Education, and Research (PIPER) Program

NFHS/NCAA/SFIA MtgWednesday , April 24, 2013

PIPER

Brief Background 2012/13 is the 8th year of consecutive data collection for High

School RIOTM

ATs from across the country report data via an internet-based data collection tool

20 sports currently studied Boys’ baseball, basketball, cross country, football, ice hockey, lacrosse,

soccer, swimming & diving, track & field, and wrestling Girls’ basketball, cross country, field hockey, lacrosse, soccer, softball,

swimming & diving, track & field, volleyball Co-Ed spirit (cheerleading)

Definitions

Injury (actually adverse health event!) Occurred as a result of an organized high school athletic practice

or competition AND Required medical attention (and came to ATs attention) AND Resulted in restriction of the athletes participation for ≥1 day

beyond the day of injury OR Concussion, fractures, and dental injury (since 2007/08)

Athletic Exposure (AE) One athlete participating in one competition or practice

Dataset Available Over 40,000 injuries

About 50% competition and 50% practice

Just under 20,000,000 AE About 30% competition and 70% practice

Vast majority are injury but also capture other adverse health events Skin infection Exertional heat illness Asthma attacks

Total Injury Rates Per 1,000 AEs (High School RIO Data)

*Indicates a significant decrease over time

General Patterns in 2011/12 Body sites injured

Head/face, ankle, and knee most common

Diagnoses Sprain/strain and concussion most common

Severity Varied widely by sport

Across sports, 6% to 38% kept athletes out of play for >3 weeks Across sports, 0% to 21% resulted in surgery

Concussions Are Still a HOT Topic

Concussion Legislation (CDC NCIPC Website)

2009: Washington passed the first concussion in sports law – Zackery Lystedt Law

One month later: Oregon passed the second – Max’s law

Between 2009 and 2012: 43 states and DC have passed “return to play laws”

Laws vary by state Age group/type of athlete covered Who is “appropriate medical professional” capable of RTP decisions Educational requirements

Three desired action steps Educate coaches, parents, and athletes Remove athletes from play Obtain permission to return to play after at least 24 hrs

Concussion Injury Rates Per 10,000 AEs (High School RIO Data)

*Indicates a significant increase over time

Injury Patterns Over TimeDiagnosis 05/06 06/07 07/08 08/09 09/10 10/11 11/12

Strain/sprain

52.0% 48.2% 48.3% 45.7% 44.7% 43.2% 41.7%

contusion 12.2% 13.7% 12.4% 11.5% 14.0% 9.6% 10.4%

fracture 9.8% 8.9% 10.2% 10.9% 9.9% 10.2% 8.0%

concussion 9.1% 8.4% 9.2% 11.8% 14.0% 20.0% 22.7%

other 16.8% 20.9% 19.9% 20.2% 17.5% 17.0% 17.2%

total 100% 100% 100% 100% 100% 100% 100%

Football Concussion Injury Rates Per 10,000 AEs (High School RIO Data)

*Indicates a significant increase over time

Percent of Concussed Athletes Returning to Play <1 Day (High School RIO Data)

Who Removed the Concussed Athlete From Play (High School RIO Data)

Trends Over Time: Good News, Bad News

Good News: Overall high school sports-related injury rates continue to decline Slight but significant Across most sports

Bad News: Concussion rates have significantly increased Across most sports Concussions represent a greater proportion of all sports-related injuries

Good News: More athletes are following concussion RTP guidelines

Best News: Coaches, parents, athletes are more knowledgeable Very few athletes are returning to play the day they sustain concussion More athletes are being removed from play by coaches

Manuscript in Progress: Concussion Support for efforts to keep football players from leading with

their head Teaching proper tackling techniques Enforcing rules

High School RIO football data from 2008/09 through 2011/12

# of symptoms, symptom resolution time, and RTP time were not associated with impact location but a higher % of concussed football players who sustained impacts to the top of the head experienced loss of consciousness (8.8%) compared to those who sustained impacts to other areas of the head (3.3%)

Manuscript Under Review: Concussion Evidence that neck strengthening programs may be an effective

primary concussion prevention mechanism that is inexpensive, easy to adopt, widely available, and fully within the athlete’s control

Sub-study nested within High School RIO Anthropometric data collected on 6,704 athletes Boys’ and girls’ soccer, basketball, and lacrosse

Aggregate neck strength (p<0.001), gender (p<0.001), and sport (p=0.007) were significant predictors of concussion in unadjusted models. After adjusting for gender and sport, aggregate neck strength remained a significant predictor of concussion (p=0.004)

New Study: Age/League Comparison Age differences in youth football injuries

Overall injury rates higher in high school athletes than middle school athletes (RR=1.48, 95% CI 1.27-1.73)

Concussion rates higher in older athletes (RR 1.73, 95% CI 1.23-2.43) but concussion represented similar proportions of all injuries among high school (23%) and middle school (21%) athletes

League differences (Pop Warner and Middle School Sponsored) Overall similar patterns Higher practice injury rates in middle school teams than Pop Warner (RR=1.66,

95% CI 1.03-2.65) Practice-related concussion rates higher in middle school teams than Pop Warner

(RR=9.79, 95% CI 1.21-73.31)

Conclusions Regarding Concussions Concussion rates continue to rise but more injured athletes

are being diagnosed promptly and managed properly

Educational efforts are having the desired effect

Appropriate protective equipment must be fitted properly, in good repair, and worn consistently

Younger athletes are also at risk of concussion, they need protective equipment designed specifically for them

Challenge Issued! Can you design equipment and uniforms that help improve the

health and safety of high school athletes – above and beyond their initially intended purpose? Consider unintended benefits Consider unintended consequences

Recent Study: Heat Illness Objective: to describe the epidemiology of exertional heat illness in

high school athletes using High School RIO data captured from 2005/06 through 2010/11 Am J Prev Med, 2013; 44(1): 8-14

All data from all 20 sports from both High School RIO samples

Only heat illness that resulted in a restriction of the athlete’s participation for at least 1 day beyond the date of onset were captured Tip of the ice burg only!

206 EHI captured during 17,172,376 AE rate of 1.20 per 100,000 AE

Study Results: Heat Illness Most (60.3%) occurred in August

Of practice related heat illness, 32.0% occurred > 2 hours into the practice session

Wide geographic distribution

Incidence rate in football was 11.4 times that in other sports combined (95% CI 8.3-15.5)

47.1% of football players who sustained EHI were obese 27.5% of football players sustaining all other injuries and adverse health events

were obese

A third (33.6%) occurred when a medical professional was not onsite at the time of onset

New Study: Heat Stroke Survey of 1,142 ATs providing care to high school football players during 2011/12

16.3% one to three events 4% four or more events Not just a southern problem: 225 events reported by 43 states

Difficulty implementing management strategies 98.2% removed football equipment 52.0% immersed athlete in ice water 51.6% took temperature 46.2% cooled athletes with a fan 8.0% used portable air conditioning 5.8% placed ice bags on atheltes

Much better to prevent events in the first place!

Study Conclusions: Heat Illness Although heat illness occurred most frequently in football, athletes in

all sports and all geographic regions are at risk

Because a third of all heat illness occurred when medical professionals were not present it is imperative that high school athletes, coaches, parents and administrators are trained to identify and appropriately respond to heat illness events

Implementing effective preventive measures depends on increasing awareness of exertional heat illness and relevant preventive and therapeutic countermeasures

How can uniform and equipment designers help?